This volume contains 11 chapters contributed by 23 practicing librarians in public and academic settings. Offering examples from around the U.S., the contributors discuss specific applications for mobile-library services as well as activities such as scavenger hunts and library tours. Whether readers work in a public or academic library looking to go mobile, or they are seeking ideas for specific apps to create or implement, they will find that this book covers the topic in a user-friendly and approachable manner, with examples drawn from experience. Each chapter includes references, and there is an index. This book will inspire and support the integration of mobile technologies on all scales into academic and public libraries.